专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20100294671A1 Aluminium collection in electrowinning cells 审中-公开
标题翻译：电解池中铝的收集
公开(公告)号：US20100294671A1
公开(公告)日：2010-11-25
申请号：US12308540
申请日：2007-06-20
申请人： Thinh T. Nguyen , Frank Schnyder , René Von Kaenel , Vittorio De Nora , Marcel Joubij
发明人： Thinh T. Nguyen , Frank Schnyder , René Von Kaenel , Vittorio De Nora , Marcel Joubij
IPC分类号： C25C3/08 , C25C3/20
CPC分类号： C25C3/08
摘要： A cell for the electrowinning of aluminium comprises an electrolysis chamber (20) in which alumina is electrolysed to produce aluminium (30) and a collection reservoir (40,40′) in which product aluminium is collected. The electrolysis chamber and the collection reservoir are in liquid communication so that aluminium produced in the electrolysis chamber can flow from the electrolysis chamber into the collection reservoir. The electrolysis chamber contains one or more metal-based anodes (15). Each anode has an active anodic surface (16) spaced above a facing cathodic surface (31) on which aluminium is produced. The cathodic surface is formed on a structural body (12) by a layer made of molten aluminium into which product aluminium is incorporated during operation. The anodic surface and the cathodic surface have a substantially constant operative position. The cell has means (60, 60′, 61, 61′, 62) for regulating the layer of molten aluminium so the layer forms a shallow or deep continuous cathodic pool (35) that extends continuously under the entire facing active anodic surface of at least one anode. The layer regulating means are arranged to maintain during operation the cathodic surface of the cathodic pool at a substantially constant position by periodic or continuous removal of molten aluminium from the aluminium pool to the collection reservoir at a rate corresponding substantially to the rate of production of the product aluminium that is incorporated into the aluminium pool.
摘要翻译：用于电解铝的电池包括电解室（20），其中氧化铝被电解以产生铝（30）和其中收集产品铝的收集容器（40,40'）。电解室和收集容器处于液体连通状态，使得在电解室中产生的铝可以从电解室流入收集容器。电解室含有一种或多种金属阳极（15）。每个阳极具有在其上产生铝的面对的阴极表面（31）上方间隔的活性阳极表面（16）。阴极表面通过由熔融铝制成的层在结构体（12）上形成，在操作期间将产品铝并入其中。阳极表面和阴极表面具有基本恒定的操作位置。电池具有用于调节熔融铝层的装置（60,60'，61,61'，62），使得该层形成浅或深连续的阴极池（35），其在整个面对的有源阳极表面下连续延伸至少一个阳极。层调节装置被布置成在操作期间将阴极池的阴极表面保持在基本上恒定的位置，通过将熔融铝从铝池周期性地或连续地移除到收集容器中，速率基本上对应于生产速率产品铝结合到铝池中。

2. 发明授权

US08097144B2 Aluminium electrowinning cell with enhanced crust 失效
标题翻译：具有强化外壳的铝电解冶金电池
公开(公告)号：US08097144B2
公开(公告)日：2012-01-17
申请号：US12224923
申请日：2007-02-26
申请人： Thinh T. Nguyen , René Von Kaenel , Vittorio De Nora
发明人： Thinh T. Nguyen , René Von Kaenel , Vittorio De Nora
IPC分类号： C25C3/08 , C25C7/00 , C25C3/06 , C25C3/10
CPC分类号： C25C3/08 , C25C3/12
摘要： A cell for the electrowinning of aluminium has a cavity for containing electrolyte (20) and one or more non emerging active anode bodies (5) that are suspended in the electrolyte. The electrolyte's surface (21,21′) has an expanse extending over the cavity and is substantially covered by a self-formed crust (25) of frozen electrolyte. The crust is mechanically reinforced by at least one preformed refractory body (30, 30′,30″). The electrolyte crust is formed against the preformed refractory body and bonded thereto so as to inhibit mechanical failure of the crust and collapse of the crust into the cavity.
摘要翻译：用于电解提取铝的电池具有用于容纳电解质（20）的空腔和悬浮在电解质中的一个或多个不出现的活性阳极体（5）。电解质的表面（21,21'）具有在空腔上延伸并且基本上由冷冻电解质的自形成壳体（25）覆盖的穹隆。地壳由至少一个预成型的耐火材料体（30,30'，30“）机械加固。电解质外壳与预制的耐火材料体形成并结合在一起，以防止外壳的机械故障和外壳塌陷到空腔内。

3. 发明授权

US07846309B2 Metal electrowinning cell with electrolyte purifier 有权
标题翻译：金属电解电池与电解液净化器
公开(公告)号：US07846309B2
公开(公告)日：2010-12-07
申请号：US10565524
申请日：2004-08-10
申请人： Thinh T. Nguyen , Frank Schnyder , Vittorio De Nora
发明人： Thinh T. Nguyen , Frank Schnyder , Vittorio De Nora
IPC分类号： C25C3/08 , C25C3/06
CPC分类号： C25C3/00 , C25C3/06 , C25C3/08 , C25C7/005
摘要： A cell for electrowinning a metal, in particular aluminium, from a compound thereof dissolved in an electrolyte (30) comprises an anode (40) and a cathode (10,11) that contact the electrolyte (30), the cathode (10,11) being during use at a cathodic potential for reducing thereon species of the metal to be produced from the dissolved compound. The electrolyte (30) further contains species of at least one element that is liable to contaminate the product metal (20) and that has a cathodic reduction potential which is less negative than the cathodic potential of the metal to be produced. The cell further comprises a collector (50) for removing species of such element (s) from the electrolyte (30). During use the collector (50) is at a potential that is: less negative than the cathodic potential of the produced metal (20) to inhibit reduction thereon of species of the metal to be produced; and at or more negative than the reduction potential of the species of said element(s) to allow reduction thereof on the collector (50). The cell is so arranged that species of said element(s) are reduced on the collector (50) rather than on the cathode (10,11) so as to inhibit contamination of the product metal (20) by said element(s).
摘要翻译：用于从溶解在电解质（30）中的化合物电解金属（特别是铝）的电池包括与电解质（30）接触的阳极（40）和阴极（10,11），阴极（10,11 ）在阴极电位的使用期间，以从其中减少由溶解的化合物产生的金属的种类。电解质（30）还含有易于污染产物金属（20）的至少一种元素的物质，并且具有阴极还原电位，所述阴极还原电位比所制备的金属的阴极电位小。电池还包括用于从电解质（30）去除这些元件的种类的收集器（50）。在使用期间，收集器（50）的电位为：比所产生的金属（20）的阴极电位小的负值，以抑制待生产的金属的种类; 并且处于或多于所述元件的种类的还原电位为负，以允许在集电体（50）上还原。电池被布置成使得所述元件的种类在集电体（50）而不是阴极（10,11）上减少，以便抑制所述元件对产品金属（20）的污染。

4. 发明授权

US07740745B2 Non-carbon anodes with active coatings 失效
标题翻译：具有活性涂层的非碳阳极
公开(公告)号：US07740745B2
公开(公告)日：2010-06-22
申请号：US10591635
申请日：2005-03-18
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： C25C3/12 , C25C3/18
CPC分类号： C25C3/18 , C25C3/08 , C25C3/12
摘要： A cell for electrowinning aluminium from alumina, comprises: a metal-based anode having an electrochemically active outer part comprising a layer that contains predominantly cobalt oxide CoO; and a fluoride-containing molten electrolyte in which the active anode surface is immersed. The electrolyte is at a temperature below 950° C., in particular in the range from 910° to 940° C. The electrolyte consists of: 6.5 to 11 weight. % dissolved alumina; 35 to 44 weight % aluminium fluoride; 38 to 46 weight % sodium fluoride; 2 to 15 weight % potassium fluoride; 0 to 5 weight % calcium fluoride; and 0 to 5 weight % in total of one or more further constituents.
摘要翻译：一种用于从氧化铝中电解铝的电池，包括：金属基阳极，其具有电化学活性的外部部分，其包含主要含有氧化钴CoO的层; 以及其中浸渍有活性阳极表面的含氟化物的熔融电解质。电解质的温度低于950℃，特别是在910℃至940℃的范围内。电解质由6.5至11重量份组成。％溶解氧化铝; 35至44重量％氟化铝; 38至46重量％氟化钠; 2至15重量％氟化钾; 0-5重量％氟化钙; 和一种或多种其它成分的总计为0至5重量％。

5. 发明授权

US07935241B2 Slurries for producing aluminium-based coatings 失效
标题翻译：用于生产铝基涂料的浆料
公开(公告)号：US07935241B2
公开(公告)日：2011-05-03
申请号：US11885528
申请日：2006-03-06
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： C25C3/08
CPC分类号： C04B41/88 , C04B41/009 , C04B41/5089 , C04B41/5155 , C04B41/52 , C04B41/90 , C04B2111/00879 , C23C18/02 , C25C3/08 , C04B41/4535 , C04B41/455 , C04B41/5031 , C04B41/5096 , C04B41/5041 , C04B41/507 , C04B41/5076 , C04B35/52
摘要： A slurry comprises suspended aluminum particles in a colloid having dispersed colloidal particles of a metal oxide such as a hydroxide. The metal oxide is reducible by metallic aluminum. The slurry has such a basic pH that dissolution of the aluminum particles in the slurry is inhibited so that when the slurry is subjected to a heat treatment, the undissolved aluminum particles are reactable with the colloidal particles to form an aluminum-based mixture resistant to chemical attack made of aluminum oxide, metal aluminum and the metal of the colloidal particles. The slurry can be used to form an aluminum-based protective coating on a component, in particular of an aluminum electrowinning cell or an apparatus for treating molten aluminum.
摘要翻译：浆料包含具有分散的金属氧化物如氢氧化物的胶体颗粒的胶体中的悬浮的铝颗粒。金属氧化物可以被金属铝还原。该浆料具有这样的碱性pH，使得铝粒子在浆料中的溶解被抑制，使得当浆料经受热处理时，未溶解的铝颗粒可与胶体颗粒反应形成耐化学品的铝基混合物氧化铝，金属铝和胶体颗粒金属的攻击。该浆料可用于在组分上，特别是铝电解冶金池或用于处理熔融铝的设备中形成铝基保护涂层。

6. 发明申请

US20090183995A1 Ceramic material for use at elevated temperature 审中-公开
标题翻译：在高温下使用的陶瓷材料
公开(公告)号：US20090183995A1
公开(公告)日：2009-07-23
申请号：US10585531
申请日：2005-01-07
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： C25B15/00 , C04B35/58 , C04B35/26 , C04B35/56 , B32B18/00 , C25B9/00 , C04B35/64 , C25C1/00
CPC分类号： C04B35/117 , C04B35/56 , C04B35/58 , C04B35/5805 , C04B35/63416 , C04B41/009 , C04B41/52 , C04B41/89 , C04B2111/00879 , C04B2235/3218 , C04B2235/3232 , C04B2235/3272 , C04B2235/3813 , C25C3/08 , C25C3/12 , Y10T428/31678 , C04B41/4539 , C04B41/5031 , C04B41/5042 , C04B41/507 , C04B41/4535 , C04B41/5072 , C04B35/522
摘要： A ceramic material (20, 20A, 20B, 20C, 20C′, 20D, 20E, 20E1, 20E2, 20E3, 20E4, 20F) comprises a structural mass made of at least one refractory compound selected from refractory borides, aluminides and oxycompounds, and combinations thereof. This structural mass has an open microporosity that is impregnated with colloidal and/or polymeric particles of iron oxide and/or a precursor of iron oxide. These particles promote wetting of the structural mass by molten aluminum and/or form upon heat treatment a sintered barrier against oxygen diffusion through the structural mass. The ceramic material can be used on cathodes (15), carbon or metal-based anodes (5,5,′), sidewalls (16) and other parts (26) of aluminum electrowinning cells, on electrodes (15A) of arc furnaces, and on stirrers (10) or vessels (45) of aluminum purification apparatus.
摘要翻译：陶瓷材料（20,20A，20B，20C，20C'，20D，20E，20E1,20E2,20E3,20E4,20F）包括由至少一种选自耐火硼化物，铝化物和氧化合物的耐火材料制成的结构块，以及其组合。该结构质量具有开放的微孔隙，其浸渍有氧化铁和/或氧化铁前体的胶体和/或聚合物颗粒。这些颗粒通过熔融铝促进结构质量的润湿和/或在热处理时形成烧结阻挡层以防止通过结构块的氧扩散。陶瓷材料可用于电弧炉的电极（15A）的阴极（15），碳或金属阳极（5,5''），铝电解池的侧壁（16）和其它部分（26）和铝净化装置的搅拌器（10）或容器（45）。

7. 发明申请

US20080135416A1 Slurries for Producing Aluminium-Based Coatings 失效
标题翻译：用于生产铝基涂料的浆料
公开(公告)号：US20080135416A1
公开(公告)日：2008-06-12
申请号：US11885528
申请日：2006-03-06
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： C25C3/06
CPC分类号： C04B41/88 , C04B41/009 , C04B41/5089 , C04B41/5155 , C04B41/52 , C04B41/90 , C04B2111/00879 , C23C18/02 , C25C3/08 , C04B41/4535 , C04B41/455 , C04B41/5031 , C04B41/5096 , C04B41/5041 , C04B41/507 , C04B41/5076 , C04B35/52
摘要： A slurry comprises suspended aluminium particles in a colloid having dispersed colloidal particles of a metal oxide such as a hydroxide. The metal oxide is reducible by metallic aluminium. The slurry has such a basic pH that dissolution of the aluminium particles in the slurry is inhibited so that when the slurry is subjected to a heat treatment, the undissolved aluminium particles are reactable with the colloidal particles to form an aluminium-based mixture resistant to chemical attack made of aluminium oxide, metal aluminium and the metal of the colloidal particles. The slurry can be used to form an aluminium-based protective coating on a component, in particular of an aluminium electrowinning cell or an apparatus for treating molten aluminium.
摘要翻译：浆料包含具有分散的金属氧化物如氢氧化物的胶体颗粒的胶体中的悬浮的铝颗粒。金属氧化物可以被金属铝还原。该浆料具有这样的碱性pH，使得铝粒子在浆料中的溶解被抑制，使得当浆料经受热处理时，未溶解的铝颗粒可与胶体颗粒反应形成耐化学品的铝基混合物氧化铝，金属铝和胶体颗粒金属的攻击。该浆料可用于在组分上，特别是铝电解冶金池或用于处理熔融铝的设备中形成铝基保护涂层。

8. 发明申请

US20090114547A1 Aluminium Electrowinning Cell with Enhanced Crust 失效
标题翻译：增强地壳铝电解槽
公开(公告)号：US20090114547A1
公开(公告)日：2009-05-07
申请号：US12224923
申请日：2007-02-26
申请人： Thinh T. Nguyen , Rene Von Kaenel , Vittorio De Nora
发明人： Thinh T. Nguyen , Rene Von Kaenel , Vittorio De Nora
IPC分类号： C25C3/06 , C25C3/18
CPC分类号： C25C3/08 , C25C3/12
摘要： A cell for the electrowinning of aluminium has a cavity for containing electrolyte (20) and one or more non emerging active anode bodies (5) that are suspended in the electrolyte. The electrolyte's surface (21,21′) has an expanse extending over the cavity and is substantially covered by a self-formed crust (25) of frozen electrolyte. The crust is mechanically reinforced by at least one preformed refractory body (30, 30′,30″). The electrolyte crust is formed against the preformed refractory body and bonded thereto so as to inhibit mechanical failure of the crust and collapse of the crust into the cavity.
摘要翻译：用于电解提取铝的电池具有用于容纳电解质（20）的空腔和悬浮在电解质中的一个或多个不出现的活性阳极体（5）。电解质的表面（21,21'）具有在空腔上延伸并且基本上由冷冻电解质的自形成壳体（25）覆盖的穹隆。地壳由至少一个预成形的耐火体（30,30'，30“）机械地增强。电解质外壳与预制的耐火材料体形成并结合在一起，以防止外壳的机械故障和外壳塌陷到空腔内。

9. 发明授权

US07431812B2 Surface oxidised nickel-iron metal anodes for aluminium production 失效
标题翻译：用于铝生产的表面氧化镍 - 铁金属阳极
公开(公告)号：US07431812B2
公开(公告)日：2008-10-07
申请号：US10506146
申请日：2003-03-12
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： C25B11/04 , C22C19/03 , C22C38/08
CPC分类号： C25C3/12
摘要： An anode for the electrowinning of aluminium by the electrolysis of alumina in a molten fluoride electrolyte has an electrochemically active integral outside oxide layer obtainable by surface oxidation of a metal alloy which consists of 20 to 60 weight % nickel; 5 to 15 weight % copper; 1.5 to 5 weight % aluminium; 0 to 2 weight % in total of one or more rare earth metals, in particular yttrium; 0 to 2 weight % of further elements, in particular manganese, silicon and carbon; and the balance being iron. The metal alloy of the anode has a copper/nickel weight ratio in the range of 0.1 to 0.5, preferably 0.2 to 0.3.
摘要翻译：用于通过在熔融氟化物电解液中电解氧化铝来电解电解铝的阳极具有电化学活性的整体外部氧化物层，其通过由20至60重量％的镍组成的金属合金的表面氧化而获得; 5至15重量％铜; 1.5至5重量％的铝; 一个或多个稀土金属，特别是钇的总和为0至2重量％; 0至2重量％的其它元素，特别是锰，硅和碳; 余量为铁。阳极的金属合金的铜/镍重量比为0.1〜0.5，优选为0.2〜0.3。

10. 发明授权

US07255893B2 Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings 失效
标题翻译：用含氧化铁的涂层保护非碳阳极和其他耐氧化组分
公开(公告)号：US07255893B2
公开(公告)日：2007-08-14
申请号：US10526913
申请日：2003-09-09
申请人： Thinh T. Nguyen , Vittorio De Nora
发明人： Thinh T. Nguyen , Vittorio De Nora
IPC分类号： B05D5/12
CPC分类号： C25C7/005 , C25C3/08 , C25C3/12 , C25C7/025
摘要： A method of forming a dense and crack-free hematite-containing protective layer on a metal-based substrate for use in a high temperature oxidising and/or corrosive environment comprises applying onto the substrate a particle mixture consisting of: 60 to 99 95 weight %, in particular 70 to 95 weight % such as 75 to 85 weight %, of hematite with or without iron metal and/or ferrous oxide; 1 to 25 weight %, in particular 5 8 to 20 weight % such as 8 to 15 weight %, of nitride and/or carbide particles, such as boron nitride, aluminium nitride or zirconium carbide particles; and 0 to 15 weight %, in particular 5 to 15 weight %, of one or more further constituents that consist of at least one metal or metal oxide or a heat-convertible precursor thereof. The hematite particles are then sintered by heat treating the particle mixture to form the protective layer that is made of a microporous sintered hematite matrix in which the nitride and/or carbide particles are embedded and which contains, when present, said one or more further constituents. The mechanical, electrical and electrochemical properties of the protective layer can be improved by using an oxide of titanium, zinc, zirconium or copper. Typically, the protected substrate can be used in a cell for the electrowinning of a metal such as aluminium.
摘要翻译：在用于高温氧化和/或腐蚀性环境的金属基底上形成致密且无裂纹的含赤铁矿保护层的方法包括将由以下物质组成的颗粒混合物施加到基底上：60至99重量％，特别是具有或不含铁金属和/或氧化亚铁的赤铁矿的70〜95重量％，例如75〜85重量％ 1至25重量％，特别是5 8至20重量％，例如8至15重量％的氮化物和/或碳化物颗粒，例如氮化硼，氮化铝或碳化锆颗粒; 和0至15重量％，特别是5至15重量％的由至少一种金属或金属氧化物或其可热转化的前体组成的一种或多种另外的组分。然后通过热处理颗粒混合物来形成赤铁矿颗粒以形成由微孔烧结的赤铁矿基质制成的保护层，其中氮化物和/或碳化物颗粒被嵌入，并且当存在所述一种或多种其它成分时。可以通过使用钛，锌，锆或铜的氧化物来改善保护层的机械，电学和电化学性质。通常，受保护的基底可用于电解池中金属如铝的电解提取。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式